by dtc » Wed Jul 01, 2020 5:02 am
as waikikichan says, a lot of tuflite boards have paint over the top of the fibreglass, which is likely to be the situation for the areas that are brown. So if it is just missing paint and there is no route for water to get inside then you will be fine. However, you can easily touch it up with some acrylic automotive spray paint or a posca pen/cover with a clear acrylic spray. Or put in some repair mix to smooth it out (more effort but better result)
Where its not brown (ie the white patch) it might have gone through the fibreglass and be exposing the foam, which definitely needs repair. You should check all of the chips to see whether there are any similar issues eg cracks through to the foam, small holes etc